Dust-guard for axle-boxes.



No. 725,049. PATENTED APR. 14, 1903. N. H.DAVIS.

DUST GUARD FOR AXLE BOXES.

APPLICATION FILED JUNE 18, 1901.

N0 MODEL.

i l 3 Inveniar: M%7 7 $w Av,

UNITED STATES PATENT OFFICE. 1

NATHAN H. DAVIS, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO MCCORD doCOMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF NEW JERSEY.

DUST-GUARD FOR AXLE-BOXES.

SPECIFICATION forming part of Letters Patent No. 725,046), dated April14, 1903.

Application filed June 18, 1901. Serial No. 64,979. (No model.) a

T0 (10% whom it may concern:

Be it known that I, NATHAN H. DAVIS, a citizen of the United States ofAmerica, residing in the city and county of Philadelphia, State ofPennsylvania, have invented a certain new and useful Improvement inDust-Guards for Axle-Boxes, of which the following is a true and exactdescription, reference being had to the accompanying drawings,which forma part thereof.

My invention relates to dust-guards used in connection with axle-boxes,and has for its object to provide a simple and efficient device andconstruction for securing a dust-guard to an axle-box, myinventionconsisting, broadly speaking, in providing a dust-guard adapted to fitagainst the outside of the rear end of the axle-box and in securing itagainst said face, and with the necessary freedom of movement upon saidface, by a spring or springs engaging the dust-guard and restingdirectly on the inside of the wall against which it is abutted, saidsprings being preferably firmly secured to the dust-guard.

Reference being now had to the drawings, in which my invention isillustrated in what I believe to be its best forms, Figure 1 is asectional view through the end of the axlebox and through the center ofthe dust-guard, taken as on the section-line 1 1 of Fig. 2. Fig. 2 is anend View of the dust-guard and axlebox. Fig. 3 is a sectional view takenon the line 3 3 of Fig. 4:, illustrating a modified constructionembodying my invention; and Fig. 4 is an end View of the said modifiedconstruction.

A indicates the axle-box, which may be of any usual construction, Aindicating the opening formed through the rear wall of the axle-box forthe passage of the axle, which opening, as is well known, isconsiderably larger in all directions than the diameter of the axle.

A indicates a preferably raised and smoothfinished face on the rearaxle-box wall, against which wall the dust-guard rests.

A Fig. 1, indicates a cavity formed in the upper end of the axle-box togive passage to a clamp or spring, a and c indicating the walls againstwhich the springs abut and press.

13 indicates the dust-guard,which, as shown, is a cast plate having anannular thickened portion B surrounding the perforation B through whichthe axle passes.

B Fig. 1, indicates a cavity which forms a convenient holding device forone end of a spring, and B, Fig. 3, indicates an inwardlyextending lug,of which several may be provided, which extend from the dust-guardthrough the opening A and serve as abutments to which springs may befastened.

C and C, Figs. 1 and 2, and 0*, Figs. Sand 4, indicate springs by whichthe dust-guard is held clamped against the face of the axlebox. Thesprings C and C are of hook or U shape, the one being fastenedto thedustguard by insertion in the cavity B and also by the rivet D, whilethe inner ends of the hook-springs extend into the axle-box and abutagainst the walls a a It will be obvious that in the construction shownit is practicable to detach the axle-box by moving it upward, so as todisengage the hooked spring C with the inner face of the axle-box wall,after which the hooked spring C can be detached by drawing thedust-guarddownward. ,It will also be obvious that a single one of the springswould serve to hold the dust-guard in place if made of sufficient power.In the construction shown in Fig. 3 the annular spring-plate (indicatedat C is fastened to the lugs 13 of the dust-guard by rivets, asindicated at D such an annular plate serving the same purpose as thehooked springs in the first illustrated construction.

I have illustrated at E in Fig. 1 the axle extending through thedust-guard into the axle-box, E indicating a section of the wheelattached to the axle.

Having now described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. In combination with an axle-box, a dustguard applied to the outerface of the rear end of the axle-box and a spring engaged with thedust-guard and resting directly on the inside of the wall against whichthe dust-guard rests,said spring acting to hold the dust-guard againstthe axle-box while permitting it to move on said box. 1

2. In combination with an axle-box, a dustguard applied to the outerface of the rear end of the axle-box and a spring directly and firmlysecured to the dust-guard and directly engaged on the inside of the wallagainst which the dust-guard rests, said spring acting to hold thedust-guard against the axlebox while permitting it to move on said box.

3. .In combination with an axle-box, a dustguard appliedto theoiiterface of the rear end of the axle-box and a hook-shaped spring secured tothe dust-guard and engaged on the inside of the Wall against which thedustguard rests, said spring acting to hold the NATHAN I-I DAVIS.Witnesses:

CHAS. A.-MYERS, D. STEWART.

